424424397907129 has 2 divisors, whose sum is σ = 424424397907130. Its totient is φ = 424424397907128.

The previous prime is 424424397907121. The next prime is 424424397907207. The reversal of 424424397907129 is 921709793424424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323489181498025 + 100935216409104 = 17985805^2 + 10046652^2 .

It is a cyclic number.

It is not a de Polignac number, because 424424397907129 - 2³ = 424424397907121 is a prime.

It is not a weakly prime, because it can be changed into another prime (424424397907121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212212198953564 + 212212198953565.

It is an arithmetic number, because the mean of its divisors is an integer number (212212198953565).

Almost surely, 2^{424424397907129} is an apocalyptic number.

It is an amenable number.

424424397907129 is a deficient number, since it is larger than the sum of its proper divisors (1).

424424397907129 is an equidigital number, since it uses as much as digits as its factorization.

424424397907129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219469824, while the sum is 67.

The spelling of 424424397907129 in words is "four hundred twenty-four trillion, four hundred twenty-four billion, three hundred ninety-seven million, nine hundred seven thousand, one hundred twenty-nine".